Aligning device



July 17, 1928.

G. R. MAUPIN ALIGNING DEVICE Filed Jan. 24, 1927 /NVNTO8.' GPA v55 R. NA UP/M Patented July 17, 1928.

UNITED STATES 1,677,837 PATENT OFFICE.

GRAVES R. MAUPIN, OF MOIBERLY, vIVIISSOURI, ASSIGLlOR 'TO. THE 3'. FAESSLER MANU- FACTURING COMPANY, OF MOBERLY, MISSOURI, A COPARTNERSHIP COMPOSED OF JOHN W. FAESSLER, GHRISTINIA FAESSLER, LOUIS E. FAESSLER, AND GRAVES MAUPIN.

ALIGNING DEVICE.

Application filed January 24, 1927. Se'rialNo. 163,211.

My invention relates to improvements in aligning devices, and has for its primary object an aligning device by means of which a finishing tool for cylindrical bearing surfaces, such as has been described in Letters Patent No. 1,619, 17 9, granted to me on March 1st, 1927, can be properly aligned for the finishing of such surfaces.

A further object is to construct an aligning dei ice whereby a tool for finishing cylindrical bearing surfaces will be so positioned that its axis is concentric to the axis of the cylindrical bearing surfaceto be operated on by the finishing tool.

In the use of my device before mentioned, I have found that it is extremely difficult to insertthe cage or rather the tool so that its axis will ;be concentricwith the axis of the cylindrical bearing to be finished because unless an extremely skilled operator was employed to finish this cylindrical bearing surface with my tool, there was always a possibility of the axis of the tool being at an inclination to the axis of the cylindrical bearing; in iother'word-s, the tool was not squarely inserted in the opening of the bearing surface. This caused thebearing surface when finished to be of larger diameter than was intended and frequently resulted in a slightly loose bearing due to the tool not being inserted squarely within the bored hole for the finishing operation.

By the use of device all possibility of inserting the toollat an angle other than in alignment with the axis of the cylindrical bearing is obviated thereby enabling unskilled workmen to handle the tool as readily as skilled workmen and always assuring that the axis *of the tool will be at right angles to a plane passed through the diameter of the cylinder bearing surface to be finished.

In the drawings:

Fig. 1 is a side elevation of a finishing tool with my improvement in connection therewith showing the same in its initial or starting position;

Fig. 2 is atop plan View of the same;

, Fig. 3 is a cross section of my aligning device; I

' Fig. 4. is a top planview of a modified form of aligning device; and

Fig. 5 is a side elevation of the same.

In carrying out my invention I employ a in the aforementioned patent.

finishing tool having a cage 6 in which I mount a pluralityof rollers 7. These rollers are designed to .be expanded radially as set forth in the aforementioned application for the method of and apparatus for finishing cylindrical bearing surfaces. Thecage '6 has formed integral therewith a sleeve 8 through which extends a mandrel provided with screw threads 9 and having on its projecting end 1 an angular portion 10. The screw threaded portion 9 is provided with a depth gauge 11, which also acts as a thrust collar and'with a stop 12.v The stop limits the geometric fact that three points, which are spaced apart, lie in the same plane.

15 indicates a connecting rod or similar part of a machine in which the cylindrical bearing 16 is inserted. This cylindrical bearing is preferably provided with a flange although this is not absolutely, necessary. However one face 17 of this hearing is trued off at right angles to the axis of the hearing. The bearing 16 is of such outside diameter that it can be readily inserted as described The trued off surface 17 is designed to act as contact surface for the support 18, which may be either in the form of pins as indicated in Figs. 1, 2 and 3 or a collar 19 as indicated in Figs. 4 and -5. When using the pins 18 it is essential that they all be of equal length, that is, all project the same distance below the table 20. Thetable 20, as well as the supports 18, is formed of hardened steel so that there will be practically no wear thereon. The table 20 is provided with :a central bore or opening 21, through which the sleeve 8 passes. It will be noted from Fig. 2 that this central bore is considerably larger in diameter than the sleeve 8 so that when the tool is inserted it can readily center itself without the necessity of shifting the table.

The bore 21 is provided with notches "or cutaway portions 22, which portions are cut sufliciently deep to permit the dowels 1 1 to pass therethrough, the purpose of which will be explained in detail later.

Referring to Figs. 4 and 5 the collar 19 is provided with openings 23 which not alone lighten the aligning device but also serve as sight openings so that the operator can readily see whether all the rollers 1n the cage are turning or not. I

The modification shown in Figs. 4- and e are especially useful in the event that the surface 17 is irregular or that the flange as shown in Fig. 1 has been omitted from the bearing altogether as by this modification I can obtain a sufiicient supporting surface to hold the top of the table 20 at right angles to the axis of the cylindrical bearing being finished.

The operation of my device is as follows: When it is desired to finish a cylindrical bearing surface by means of my rolling tool the table 20 is first slipped over the sleeve 8 in such a manner that the dowels will pass through the cutaway portions 22. The tool is then turned so that the dowels will rest on the surface of the table 20 between these cutaway portions as indicated in Fig. 2.

The aligning device is then placed in position as illustrated in Fig. 1 with the legs 18 or the collar 19 supporting it and when in position the table 20 will be at right angles to the axis of the bearing. The finishing tool is now supported as illustrated in Fig. 1 with the rollers partially projecting into the surface to be finished. The mandrel is rotated so that the rollers 7 are radially I expanded causing them to bind against the cylindrical bearing surface.

The gauge 12 is backed off a slight distance and the mandrel rotated still farther. The first action of the rollers will be to cause the mandrel to feed downward expanding the rollers as far as the mandrel will permit. This action has been fully de scribed in my application aforementioned.

After the rollers have expanded to their fullest limit, the cage and sleeve 8 will commence to rotate moving the dowels 14: into such a position that they will be over the cutaway portions 22 in the table. When the device is in this position the table is removed and the device fed through in the ordinary manner, that is the rollers being at a very slight angle to the axis of the cage and to the cylindrical bearing surface to be finished will tend to feed the device through the bushing or cylindrical bearing. After the device has been fed through, this hearing the same is gauged to see whether it is the proper size and, if the proper size has not been obtained, the operation is repeated, that is the device is first aligned by the use of the table. In this way I am assured that my finishing tool will always have its axis in verof the finishing tool would be inserted deeper than the diametrically opposite portion, and I found thatwhen this was the case that the'bearing surface being finished would be larger in diameter than was indicated by the expansion of the rollers, but with my improved aligning device this is impossible because the top of the table is always mainvtained in a plane at right angles to the axis of the bearing being finished and, by reason of having thedowels arranged in a plane at right angles to the axis of the finishing tool, this tool cannot enter the bearing surface to be finished in any other manner than to have its axis in alignment with the axis of the bearing surface.

Having fully described my invention, what I claim is o 1. An aligning device comprising the combination with a finishing tool having studs projecting radially therefrom and in the same plane at right angles to the axis of said tool, of atable having a central bore therethrough through which a portion of the tool passes, said table adapted to support said studs so that said'tool will be supported at right angles to said table, means for supporting said table at right angles to the bore of a cylindrical bearing, and passageways formed in said table for permitting'said studs to pass 'therethrough wherebysaidtable can be removed after the tool has been inserted in a cylindrical bore.

2. In an aligning device comprising the combination with a finishingtool having radial projections, of a table provided with means for supporting the same at right an gles to the axis of a cylindrical bearing, said table adapted to support said radial projections and having a central bore and cutaway portions, through which said projections may pass whereby said table can be removed from the finishing tool after the same has been inserted in said bearing. f

3. In an aligning device comprising the combination with a roller finishing tool having a cage, a shank integral therewith and provided with radially extending studs so arranged that the same will define a plane at right angles to the axis of the tool, of a table having a central opening through which a portion of said tool extends for supporting said studs so that the longitudinal axis of said tool will extend at right angles July 17, 1928. 1,677,838

A A. G. MOLIN SIZING APPARATUS FOR COKE OR THE LIKE Filed Bees 9, 1926 

